public override void HandleMessage(int fromId, Msg msg)
{
Debug.Assert(msg.Type == MsgType.SubProtocolCompleted);
var completedMsg = (SubProtocolCompletedMsg)msg;
switch (Stage)
{
case 0:
// reconstruct the rand we just created
ExecuteSubProtocol(new ReconstructionProtocol(Me, RandGenQuorum, (Share <BigZp>)completedMsg.SingleResult));
break;
case 1:
ProtocolRandom = (BigZp)completedMsg.SingleResult;
ExecuteSubProtocol(new MajorityFilteringProtocol <BigZp>(Me, PartyIds, PartyIds.Skip(TRUSTED_PARTY_COUNT).ToArray(),
ProtocolRandom, ProtocolIdGenerator.GenericIdentifier(1)));
break;
case 2:
if (!RandGenQuorum.HasMember(Me.Id))
{
ProtocolRandom = (BigZp)completedMsg.SingleResult;
}
GenerateQuorums();
GenerateGateQuorumAssignment();
SetupInputDistribution();
break;
case 3:
UnpackCircuitInputs(completedMsg.Result);
SetupQuorumExecutions();
break;
case 4:
UnpackCircuitResults((completedMsg.SingleResult as SubProtocolCompletedMsg).Result);
SetupReconstruction();
break;
case 5:
UnpackReconstruction(completedMsg.Result);
SetupResultBroadcast();
break;
case 6:
CollectResults(completedMsg.Result);
IsCompleted = true;
break;
}
Stage++;
}
private static SortedSet <int> QuorumPlusParty(Quorum q, int p)
{
if (q.HasMember(p))
{
return(q.Members);
}
var newSet = new SortedSet <int>(q.Members);
newSet.Add(p);
return(newSet);
}
public override void Start()
{
if (Me.Id == SrcParty)
{
Debug.Assert(Secret != null);
Share(Secret);
}
if (!DstQuorum.HasMember(Me.Id))
{
IsCompleted = true;
Result = null;
}
}
public void SetupRandGenStep()
{
Debug.Assert(PartyIds.Count > TRUSTED_PARTY_COUNT);
RandGenQuorum = new Quorum(NextQuorumNumber++, PartyIds.Take(5).ToArray());
if (RandGenQuorum.HasMember(Me.Id))
{
BigZp myRandom = new BigZp(Prime, Me.SafeRandGen.Next(Prime));
ExecuteSubProtocol(new RandomGenProtocol(Me, RandGenQuorum, myRandom, Prime));
}
else
{
// receive the rand broadcast
ExecuteSubProtocol(new MajorityFilteringProtocol <BigZp>(Me, PartyIds, RandGenQuorum.Members.ToList(), ProtocolIdGenerator.GenericIdentifier(1)));
Stage = 2;
}
}